Home / Standards / MT 147-1992 MT 147-1992 Active 煤矿用阻燃输送带 Standard Type MT14 ICS N/A CCS N/A Status Active Issue Date 1992-12-15 Implementation 1993-07-01 Centralized Committee 国家矿山安全监察局 Issuing Authority 国家矿山安全监察局